I am a newly minted extra, back in the hobby after a nearly 50 year hiatus. My ic 7000 was initially operated into a MFJ window/balcony antenna (12ft whip w/ loading coil) and operated flawlessly. I purchased an AH4 tuner and attempted operation into the prescribed 23 ft wire against a counterpoise. While the tuner does seem to provide a decent match (typically 1.2--1.3 vswr), all manner of strange operations are also seen. Specifically, the 7000 will change bands and modes during transmit, usually on the third or fourth keying. Occasionally, it will also invoke unprogrammed memory channels also. If keyed on 6 meters the radio seems to "reset": turns off then goes through the power-up sequence. I purchased this tuner after reading the glowing reviews seen in all quarters but personally am having no luck at all. What am I doing wrong?